Great breakthroughs !

In Chinese long history, there are lots of breakthroughs which contribute to society and people.

To begin with, there are four greatest breakthroughs, that is, compass, gunpowder, paper making and typography. When these were invented, they all were used into life immediately. Compass was used in navigation widely. When the fleet sailed in the sea, they needed a tool to confirm the direction. And the compass could help them to make sure the navigation exactly. Before the compass inventing, people only could use sun, moon or star to fix where they should go. This was not really precise, especially there were some clouds and the weather was not stable. Gunpowder was used for war mostly and it was the precursor of modern weapons. We can image that if there is no gunpowder, how our life can be. Paper making was also a great invention. We need papers every day and everywhere. If there is no paper, our lives can be damaged. We can not live without papers. For typography, our lives become more convenient and effective. Before it was invented, people could only use hand-writing and this took a long time.

Besides, there were still some significant inventions in history. Seismograph was firstly invented in China which was a thousand and seven hundreds years earlier than others. From then on, people could predict the earthquakes and there were less disasters and losses.

In the world, there were still some important inventions which made some progress. We should give our honor to those inventors. Our lives can not be so wonderful if there are no inventions.